At 159cm and 50kg, your body mass index (BMI) would be around 19.7, which falls within the healthy weight range. However, it's important to remember that BMI is just one measure of health and doesn't account for factors like muscle mass or body composition. It's best to focus on overall health and well-being rather than just a number on the scale. If you have concerns about your weight, it's a good idea to speak with a healthcare professional who can provide personalized advice. **

No, a person who is 164cm tall and weighs 50kg would not fit on a 130cm pony. The pony would not be able to comfortably support the weight of the rider, and the rider's legs would likely hang too low to properly control the pony. It's important to match the size and weight of the rider to the appropriate size of the pony for the safety and comfort of both the rider and the animal. **

Yes, I can create a PowerPoint presentation about the Sydney Harbour Bridge. The presentation can include slides about the history of the bridge, its construction, design features, and its significance as an iconic landmark in Sydney. I can also include images, diagrams, and interesting facts about the bridge to make the presentation engaging and informative. Let me know if you would like me to proceed with creating the presentation. **

One way to make normal concrete waterproof is to add a waterproofing admixture to the concrete mix. This admixture can help to reduce the porosity of the concrete, making it more resistant to water penetration. Another method is to apply a waterproofing sealer or coating to the surface of the cured concrete. This can help to create a barrier that prevents water from seeping into the concrete. Additionally, using a lower water-to-cement ratio in the concrete mix can also help to improve its waterproofing properties. **

Yes, you may compact the concrete slabs. Compacting the slabs will help to ensure that they are properly settled and will provide a more stable foundation. However, it is important to use the appropriate compaction equipment and techniques to avoid damaging the slabs. Additionally, it is important to follow any specific guidelines or recommendations provided by the manufacturer or engineer to ensure the best results. **

To waterproof an old concrete swimming pool, you can start by thoroughly cleaning the surface to remove any dirt, debris, and old sealant. Then, you can apply a waterproofing sealant specifically designed for concrete surfaces. This sealant will create a protective barrier against water penetration and help prevent leaks and cracks. Additionally, you can consider applying a waterproofing membrane or coating to provide extra protection. It's important to follow the manufacturer's instructions and ensure the surface is properly prepared before applying any waterproofing products. **

Yes, there are lifestyle links. Lifestyle choices such as diet, exercise, and stress management can have a significant impact on overall health and well-being. For example, maintaining a healthy diet and regular exercise routine can help prevent chronic diseases such as heart disease and diabetes. Additionally, managing stress through relaxation techniques and mindfulness practices can improve mental health and reduce the risk of conditions such as anxiety and depression. Therefore, making positive lifestyle choices can greatly influence one's overall health and quality of life. **

To apply concrete on concrete, the existing surface must be clean, free of debris, and properly moistened. A bonding agent or primer should be applied to the existing concrete to ensure adhesion. The fresh concrete mix can then be poured or pumped onto the existing surface and spread evenly using a screed or trowel. It is important to properly cure the new concrete to prevent cracking and ensure a strong bond between the two layers. **